Which of these was NOT a reason that led President Woodrow Wilson to ask Congress to declare war against the Central Powers in World War I?
a. Sinking of the Lusitania by German submarines
b. Unrestricted submarine warfare against the U. S.
c. The Great Depression had started
d. The Zimmerman Telegram was intercepted

the answer is alexander graham bell.

question as stated in comment

why did the chinese require the portuguese to pay for goods in gold and silver when trading?

choices

portuguese goods were less valuable than chinese goods.

the chinese already had a surplus of portuguese goods.

the imperial government wanted to stockpile gold and silver.

portuguese and chinese currencies were not exchangeable.

this a history q n in ancient time, theres no money exchange. so ans is portuguese and chinese currencies were not exchangeable.